arch/x86/include/asm/irq.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_X86_IRQ_H
   3 #define _ASM_X86_IRQ_H
   4 /*
   5  *      (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
   6  *
   7  *      IRQ/IPI changes taken from work by Thomas Radke
   8  *      <tomsoft@informatik.tu-chemnitz.de>
   9  */
  10
  11 #include <asm/apicdef.h>
  12 #include <asm/irq_vectors.h>
  13
  14 /*
  15  * The irq entry code is in the noinstr section and the start/end of
  16  * __irqentry_text is emitted via labels. Make the build fail if
  17  * something moves a C function into the __irq_entry section.
  18  */
  19 #define __irq_entry __invalid_section
  20
  21 static inline int irq_canonicalize(int irq)
  22 {
  23         return ((irq == 2) ? 9 : irq);
  24 }
  25
  26 extern int irq_init_percpu_irqstack(unsigned int cpu);
  27
  28 struct irq_desc;
  29
  30 extern void fixup_irqs(void);
  31
  32 #if IS_ENABLED(CONFIG_KVM)
  33 extern void kvm_set_posted_intr_wakeup_handler(void (*handler)(void));
  34 #endif
  35
  36 extern void (*x86_platform_ipi_callback)(void);
  37 extern void native_init_IRQ(void);
  38
  39 extern void __handle_irq(struct irq_desc *desc, struct pt_regs *regs);
  40
  41 extern void init_ISA_irqs(void);
  42
  43 #ifdef CONFIG_X86_LOCAL_APIC
  44 void arch_trigger_cpumask_backtrace(const struct cpumask *mask,
  45                                     int exclude_cpu);
  46
  47 #define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
  48 #endif
  49
  50 #endif /* _ASM_X86_IRQ_H */